CN111880070A - Clamping device of PIN diode reverse bias current detection tool - Google Patents
Clamping device of PIN diode reverse bias current detection tool Download PDFInfo
- Publication number
- CN111880070A CN111880070A CN202010858340.3A CN202010858340A CN111880070A CN 111880070 A CN111880070 A CN 111880070A CN 202010858340 A CN202010858340 A CN 202010858340A CN 111880070 A CN111880070 A CN 111880070A
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- China
- Prior art keywords
- pin
- pin diode
- detection tool
- bias current
- reverse bias
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/26—Testing of individual semiconductor devices
- G01R31/2601—Apparatus or methods therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
Abstract
The invention provides a clamping device of a PIN diode reverse bias current detection tool, which can detect a plurality of PIN diodes at one time by arranging a plurality of detection stations on a test fixture, thereby improving the screening efficiency; the ejector PINs are arranged on the clamp seat and are respectively movably connected with the clamp seat, so that when the driving device pushes the pressing plate to abut against the test clamp, the ejector PINs and the PIN diode are ensured to be reliably contacted; the pressing plate is provided with the plurality of elastic sheets, so that a high-voltage signal of the detection tool can reach the cathode of the PIN diode through the elastic sheets and the ejector PINs in sequence; the metal sheet is arranged on the clamp seat, and the anodes of the PIN diodes can be grounded; through setting up the guard plate, can be for preventing the electric leakage or the electric arc that appears in the testing process to on-the-spot operating personnel's injury.
Description
Technical Field
The invention relates to the field of PIN diode detection tools, in particular to a clamping device of a PIN diode reverse bias current detection tool.
Background
The frequency hopping filter is a very important component in a frequency hopping radio station, and plays a decisive role in the performance and reliability of the frequency hopping radio station. The reliability of the frequency hopping filter product is ranked first during production. The frequency hopping filter needs PIN pipe, and every needs to use hundreds of PIN pipe welding on PCB board or metal substrate, detects after welding into semi-manufactured goods or finished product about 10% PIN pipe inefficacy, seriously influences production progress and efficiency. Therefore, before the PIN tube is used, the test is carried out, and the elements with poor performance or unqualified performance are screened. The detection of the leakage current index of the PIN tube is the most critical. At present, the leakage current index of the PIN tube is detected one by one through a universal meter, and the working efficiency is low. Therefore, in order to solve the problem, the invention provides the clamping device of the PIN diode reverse bias current detection tool, which can greatly improve the reliability of a frequency hopping filter product.
Disclosure of Invention
In view of this, the invention provides a clamping device for a PIN diode reverse bias current detection tool, which can greatly improve the reliability of a frequency hopping filter product.
The technical scheme of the invention is realized as follows: the invention provides a clamping device of a PIN diode reverse bias current detection tool, which comprises:
the shell is internally provided with a working power supply and a high-voltage pack; the grounding end and the power output end of the working power supply are respectively and electrically connected with the grounding end and the power end of the high-voltage package;
the test fixture is detachably arranged on the shell and is provided with a fixture seat, and the fixture seat is provided with a plurality of detection stations at intervals, a plurality of ejector pins movably connected with the fixture seat, a metal sheet serving as a negative electrode of the detection fixture and a plurality of springs;
the detection station comprises a card slot for placing a PIN diode, and the card slot is matched with the PIN diode;
the ejector pin is movably connected with the clamp seat, is connected with the clamping groove under the action of external force, and rebounds to the original position under the action of the spring when the action of the external force is removed;
the metal sheet is arranged on the clamp seat and is opposite to the thimble.
On the basis of the technical scheme, preferably, the test fixture is in threaded connection or buckled connection with the shell.
Further preferably, the device also comprises a pressure plate;
the pressing plate is arranged on the shell and is arranged in front of the ejector pins, and a plurality of elastic sheets serving as the anode of the detection tool are arranged in positions corresponding to the ejector pins one by one; the elastic sheets are respectively and electrically connected with the high-voltage output end of the high-voltage pack;
the pressing plate is pushed forward under the action of external force, so that the plurality of elastic sheets can be in one-to-one corresponding contact with the plurality of thimbles;
a plurality of PIN diodes are placed on a plurality of clamping grooves in a one-to-one correspondence mode, the anodes of the PIN diodes are connected with the metal sheet respectively, the cathodes of the PIN diodes are connected with the other ends of the ejector PINs in a one-to-one correspondence mode respectively, and voltage signals of the detection tool sequentially pass through the elastic sheets and the ejector PINs and reach the cathodes of the PIN diodes.
On the basis of the technical scheme, the device preferably further comprises a first guide rod, a second guide rod, a first guide sleeve and a second guide sleeve;
the first guide sleeve and the second guide sleeve are respectively inserted on the clamp seat, one end of the first guide rod penetrates through the first guide sleeve, the other end of the first guide rod is installed on the pressing plate, one end of the second guide rod penetrates through the second guide sleeve, and the other end of the second guide rod is installed on the pressing plate.
On the basis of the technical scheme, the protective plate and the connecting piece are preferably further included;
the connecting piece is arranged on the clamp seat and is movably connected with the protection plate;
and a protection plate covering the jig base.
Compared with the prior art, the clamping device of the PIN diode reverse bias current detection tool has the following beneficial effects:
(1) by arranging a plurality of detection stations on the test fixture, a plurality of PIN diodes can be detected at one time, and the screening efficiency is improved;
(2) the ejector PINs are arranged on the clamp seat and are respectively movably connected with the clamp seat, so that when the driving device pushes the pressing plate to abut against the test clamp, the ejector PINs and the PIN diode are ensured to be reliably contacted;
(3) the pressing plate is provided with the plurality of elastic sheets, so that a high-voltage signal of the detection tool can reach the cathode of the PIN diode through the elastic sheets and the ejector PINs in sequence; the metal sheet is arranged on the clamp seat, and the anodes of the PIN diodes can be grounded;
(4) by arranging the first guide rod, the second guide rod, the first guide sleeve and the second guide sleeve, when the driving device pushes the pressing plate to abut against the test fixture, the pressing plate is prevented from deviating left and right in the moving process, and a plurality of elastic sheets can be respectively in one-to-one abutting connection with a plurality of ejector pins;
(5) through setting up the guard plate, can be for preventing the electric leakage or the electric arc that appears in the testing process to on-the-spot operating personnel's injury.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a perspective view of a clamping device of a PIN diode reverse bias current detection tool of the invention;
fig. 2 is a perspective view of a clamping device of the PIN diode reverse bias current detection tool after a protection plate and a connecting piece are hidden;
fig. 3 is a top view of a clamping device of the PIN diode reverse bias current detection tool of the present invention after hiding a protection plate and a connecting member;
in the figure, 1-shell, 2-test fixture, 21-fixture seat, 22-detection station, 221-clamping groove, 23-thimble, 24-sheet metal, 3-pressing plate, 31-elastic sheet, 5-first guide rod, 6-second guide rod, 7-first guide sleeve, 8-second guide sleeve, 11-protection plate and 12-connecting piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, the clamping device of the PIN diode reverse bias current detection tool of the present invention includes a housing 1, a test fixture 2, a pressing plate 3, and a driving device 4.
Casing 1, inside is provided with accommodation space, and accommodation space is provided with working power supply and high-voltage bag, and wherein, working power supply provides operating voltage for the high-voltage bag, and the high-voltage bag is used for providing the high pressure that detects PIN pipe reverse bias current. In this embodiment, the ground terminal and the power output terminal of the working power supply are electrically connected to the ground terminal and the power terminal of the high-voltage package, respectively.
And the test fixture 2 is used for placing the PIN diode to be tested. As shown in fig. 2, the test fixture 2 is fixedly mounted on the housing 1, and is provided with a fixture seat 21, the fixture seat 21 is provided with a plurality of detection stations 22 at intervals, a plurality of ejector pins 23 movably connected with the fixture seat 21, and a metal sheet 24 as a negative electrode of the detection fixture; the detection station 22 comprises a card slot 221 for placing a PIN diode, and the card slot 221 is matched with the PIN diode; the ejector pin 23 is movably connected with the clamp seat 21, the ejector pin 23 is connected with the clamping groove 221 under the action of external force, and when the external force is removed, the ejector pin 23 rebounds to the original position under the action of a spring; and a metal sheet 24 arranged on the clamp seat 21 at a position opposite to the thimble 23. The test fixture (2) is in threaded connection or buckled connection with the shell (1).
The pressing plate 3 is arranged on the shell 1 and is arranged in front of the ejector pins 23 as shown in fig. 2, and a plurality of elastic sheets 31 serving as anodes of the detection tool are arranged at positions corresponding to the ejector pins 23 one by one; the plurality of elastic pieces 31 are electrically connected with the high-voltage output end of the high-voltage pack respectively.
Further preferably, in order to enable the elastic sheets 31 on the pressing plate 3 to correspond to the ejector pins 23 one by one under the action of an external force and ensure good contact, as shown in fig. 3, a first guide rod 5, a second guide rod 6, a first guide sleeve 7 and a second guide sleeve 8 are provided in this embodiment; the first guide sleeve 7 and the second guide sleeve 8 are respectively inserted on the clamp seat 21, one end of the first guide rod 5 penetrates through the first guide sleeve 7, the other end of the first guide rod 5 is installed on the pressing plate 3, one end of the second guide rod 6 penetrates through the second guide sleeve 8, and the other end of the second guide rod 6 is installed on the pressing plate 3. When the pressing plate 3 is pushed by external force to move towards the test fixture 2, the pressing plate 3 drives the first guide rod 5 and the second guide rod 6 to move forwards along the first guide sleeve 7 and the second guide sleeve 8 respectively.
Further preferably, when detecting the reverse bias current of the PIN diode, the high-voltage package is used to output a high-voltage signal to the PIN diode, so that in order to prevent the occurrence of electric leakage or the damage of electric arc generated in the detection process to field operators, in the embodiment, the protection plate 11 and the connecting piece 12 are arranged, and the connecting piece 12 is arranged on the clamp seat 21 and movably connected with the protection plate 11; the protection plate 11 is rotatably disposed on the jig base 21, and the protection plate 11 may cover the inspection station 22, the plurality of ejector pins 23, and the metal sheet 24.
The working principle of the embodiment is as follows: a plurality of PIN diodes are correspondingly placed on a plurality of detection stations 22 one by one, anodes of the PIN diodes are respectively connected with a metal sheet 24, a plurality of elastic sheets 31 on a pressing plate 3 can be respectively in one-to-one corresponding abutting connection with a plurality of thimbles 23 under the action of external force, and under the thrust of the pressure plate 3, a plurality of thimbles 23 are connected with the detection station 22, at this time, the cathodes of the PIN diodes are respectively connected with the thimbles 23 in a one-to-one correspondence manner, the power supply of the detection tool is started, so that a high-voltage signal of the detection tool sequentially passes through the elastic sheet 31 and the thimble 23 to reach the cathode of the PIN diode, the reverse bias current of the PIN diode is detected, after the detection is finished, the external force is removed, the elastic sheet 31 is separated from the thimble 23, and the thimble 23 is restored to the original position by the spring force, and the thimble 23 is separated from the detection station 22.
The beneficial effect of this embodiment does: by arranging the plurality of detection stations 22 on the test fixture 2, a plurality of PIN diodes can be detected at one time, and the screening efficiency is improved;
by arranging the plurality of ejector PINs 23 on the clamp seat 21 and movably connecting the plurality of ejector PINs 23 with the clamp seat 21 respectively, the ejector PINs 23 can be ensured to be reliably contacted with the PIN diode when the driving device 4 pushes the pressing plate 3 to abut against the test clamp 2;
by arranging the plurality of elastic sheets 31 on the pressing plate 3, a high-voltage signal of the detection tool can reach the cathode of the PIN diode through the elastic sheets 31 and the ejector PINs 23 in sequence; the clamp seat 21 is provided with a metal sheet 24 which can be used for grounding the anodes of the PIN diodes;
by arranging the first guide rod 5, the second guide rod 6, the first guide sleeve 7 and the second guide sleeve 8, when the driving device 4 pushes the pressing plate 3 to abut against the test fixture 2, the pressing plate 3 is ensured not to deviate left and right in the moving process, and a plurality of elastic sheets 31 are ensured to be correspondingly abutted and connected with a plurality of ejector pins 23 one by one;
through setting up guard plate 11, can be for preventing the electric leakage or the electric arc that appears in the testing process from the injury to field operation personnel.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The utility model provides a clamping device of PIN diode reverse bias current detection frock which characterized in that: the method comprises the following steps:
the device comprises a shell (1) internally provided with a working power supply and a high-voltage pack; the grounding end and the power output end of the working power supply are respectively and electrically connected with the grounding end and the power end of the high-voltage package;
the test fixture (2) is detachably arranged on the shell (1) and is provided with a fixture seat (21), a plurality of detection stations (22), a plurality of ejector pins (23) movably connected with the fixture seat (21), a metal sheet (24) serving as a negative electrode of the detection fixture and a plurality of springs are arranged on the fixture seat (21) at intervals;
the detection station (22) comprises a card slot (221) for placing a PIN diode, and the card slot (221) is matched with the PIN diode;
the ejector pin (23) is movably connected with the clamp seat (21), the ejector pin (23) is connected with the clamping groove (221) under the action of external force, and when the external force is removed, the ejector pin (23) rebounds to the original position under the action of the spring;
and the metal sheet (24) is arranged on the clamp seat (21) and is opposite to the thimble (23).
2. The clamping device of the PIN diode reverse bias current detection tool according to claim 1, wherein: the test fixture (2) is in threaded connection or buckled connection with the shell (1).
3. The clamping device of the PIN diode reverse bias current detection tool according to claim 1, wherein: the device also comprises a pressure plate (3);
the pressing plate (3) is arranged on the shell (1) and is arranged in front of the ejector pins (23), and a plurality of elastic sheets (31) serving as anodes of the detection tool are arranged in positions corresponding to the ejector pins (23) one by one; the elastic sheets (31) are respectively and electrically connected with the high-voltage output end of the high-voltage pack;
the pressing plate (3) is pushed forward under the action of external force, so that the plurality of elastic sheets (31) are in one-to-one corresponding contact with the plurality of thimbles (23);
a plurality of PIN diodes are correspondingly placed on a plurality of clamping grooves (221) one by one, anodes of the PIN diodes are respectively connected with metal sheets (24), cathodes of the PIN diodes are respectively connected with the other ends of the ejector PINs (23) in one-to-one correspondence, and voltage signals of the detection tool sequentially pass through the elastic sheets (31) and the ejector PINs (23) and reach the cathodes of the PIN diodes.
4. The clamping device of the PIN diode reverse bias current detection tool according to claim 3, wherein: the device also comprises a first guide rod (5), a second guide rod (6), a first guide sleeve (7) and a second guide sleeve (8);
the clamp is characterized in that the first guide sleeve (7) and the second guide sleeve (8) are respectively inserted on the clamp seat (21), one end of the first guide rod (5) penetrates through the first guide sleeve (7), the other end of the first guide rod (5) is installed on the pressing plate (3), one end of the second guide rod (6) penetrates through the second guide sleeve (8), and the other end of the second guide rod (6) is installed on the pressing plate (3).
5. The clamping device of the PIN diode reverse bias current detection tool according to claim 1, wherein: the protective plate is characterized by also comprising a protective plate (11) and a connecting piece (12);
the connecting piece (12) is arranged on the clamp seat (21) and is movably connected with the protection plate (11);
the protection plate (11) covers the clamp seat (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010858340.3A CN111880070A (en) | 2020-08-24 | 2020-08-24 | Clamping device of PIN diode reverse bias current detection tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010858340.3A CN111880070A (en) | 2020-08-24 | 2020-08-24 | Clamping device of PIN diode reverse bias current detection tool |
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| Publication Number | Publication Date |
|---|---|
| CN111880070A true CN111880070A (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010858340.3A Pending CN111880070A (en) | 2020-08-24 | 2020-08-24 | Clamping device of PIN diode reverse bias current detection tool |
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| Country | Link |
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| CN (1) | CN111880070A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116338412A (en) * | 2023-05-26 | 2023-06-27 | 深圳市国王科技有限公司 | Test method and device for silicon controlled rectifier |
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